In renewable energy sources Power quality of distribution system can also be affected by non-linear loads.Non-linear loads are a source of harmonic currents.Renewable energy sources do not directly supplies AC power to the consumers.Renewable sources generate DC power which is then converted to AC with the help of electronic based inverters. Those electronic circuits associated with control and interconnection of renewable energy sources will inject harmonics in the system to which these are connected.
Breaker Schemes in Substations — Types, Design, Advantages, Disadvantages, and Comparison Author: Engr. Aneel Kumar Figure 1: Infographic overview of breaker schemes commonly used in substations. Introduction The breaker scheme or busbar arrangement in a substation defines how incoming feeders, outgoing feeders, and power transformers are connected to the bus. The choice of scheme has a direct impact on system reliability, maintainability, safety, and cost . A simple bus scheme is economical but vulnerable to outages, while advanced schemes such as breaker-and-a-half or double-bus/double-breaker provide very high reliability but at much higher cost and design complexity. Engineers select breaker schemes considering fault tolerance, maintenance needs, space requirements, expansion possibilities, protection coordination, and capital investment . Below, we explain eac...
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